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Bad fuel economy from a new turbo

22K views 89 replies 31 participants last post by  ndrgd57  
My city MPG is around 18mpg...I've got a lead foot, and I drive in Sport Mode.

My highway MPG is always around 36mpg, and I cruise control at 70-75mph (so no Sport Mode). I did average around 34mpg on a road trip, but I was driving 75-80mph down in Texas.

Oddly enough if I'm not in Sport Mode in the city, my MPG goes down to 16mpg.

I use 89 Octane gas. Tires are Michelin CrossClimates, and I run them at 38 front / 36 rear.
 
I didn't mention it in my original post, but I find a marked difference in MPG when I'm running the A/C.

In city driving my MPG drops by about 3-4mpg...highway not so much.
 
8 or 9 months of the year in SE Texas :rolleyes:

It's A/C on from mid April through mid November at least...
Hell, I run mine all the time to keep moisture levels down in the cabin.

If I turn the A/C off, the windows get wet immediately. I've got WeatherTech liners front and back, and no leaks anywhere. It's just a damp cabin without A/C.